Gaya APA

Tumbuan, F, B. (2011). Indonesian Unicorporated Business Entities and The Limited Liability Company (1). jakarta: PT Elex Media Komputindo.

Gaya MLA

Tumbuan, Fred, B.G. "Indonesian Unicorporated Business Entities and The Limited Liability Company". 1 jakarta: PT Elex Media Komputindo, 2011. Text.